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namespace LibGit2Sharp
{
/// <summary>
/// Provides helper overloads to a <see cref="Repository"/>.
/// </summary>
public static class RepositoryExtensions
{
/// <summary>
/// Try to lookup an object by its sha or a reference name.
/// </summary>
/// <typeparam name = "T"></typeparam>
/// <param name="repository">The <see cref="Repository"/> being looked up.</param>
/// <param name = "shaOrRef">The shaOrRef to lookup.</param>
/// <returns></returns>
public static T Lookup<T>(this Repository repository, string shaOrRef) where T : GitObject
{
return (T)repository.Lookup(shaOrRef, GitObject.TypeToTypeMap[typeof(T)]);
}
/// <summary>
/// Try to lookup an object by its <see cref = "ObjectId" />.
/// </summary>
/// <typeparam name = "T"></typeparam>
/// <param name="repository">The <see cref="Repository"/> being looked up.</param>
/// <param name = "id">The id.</param>
/// <returns></returns>
public static T Lookup<T>(this Repository repository, ObjectId id) where T : GitObject
{
return (T)repository.Lookup(id, GitObject.TypeToTypeMap[typeof(T)]);
}
/// <summary>
/// Creates a lightweight tag with the specified name. This tag will point at the commit pointed at by the <see cref="Repository.Head"/>.
/// </summary>
/// <param name="repository">The <see cref="Repository"/> being looked up.</param>
/// <param name="tagName">The name of the tag to create.</param>
public static Tag ApplyTag(this Repository repository, string tagName)
{
return ApplyTag(repository, tagName, repository.Head.CanonicalName);
}
/// <summary>
/// Creates a lightweight tag with the specified name. This tag will point at the <paramref name="target"/>.
/// </summary>
/// <param name="repository">The <see cref="Repository"/> being looked up.</param>
/// <param name="tagName">The name of the tag to create.</param>
/// <param name="target">The canonical reference name or sha which should be pointed at by the Tag.</param>
public static Tag ApplyTag(this Repository repository, string tagName, string target)
{
return repository.Tags.Create(tagName, target);
}
/// <summary>
/// Creates an annotated tag with the specified name. This tag will point at the commit pointed at by the <see cref="Repository.Head"/>.
/// </summary>
/// <param name="repository">The <see cref="Repository"/> being looked up.</param>
/// <param name="tagName">The name of the tag to create.</param>
/// <param name="tagger">The identity of the creator of this tag.</param>
/// <param name="message">The annotation message.</param>
public static Tag ApplyTag(this Repository repository, string tagName, Signature tagger, string message)
{
return ApplyTag(repository, tagName, repository.Head.CanonicalName, tagger, message);
}
/// <summary>
/// Creates an annotated tag with the specified name. This tag will point at the <paramref name="target"/>.
/// </summary>
/// <param name="repository">The <see cref="Repository"/> being looked up.</param>
/// <param name="tagName">The name of the tag to create.</param>
/// <param name="target">The canonical reference name or sha which should be pointed at by the Tag.</param>
/// <param name="tagger">The identity of the creator of this tag.</param>
/// <param name="message">The annotation message.</param>
public static Tag ApplyTag(this Repository repository, string tagName, string target, Signature tagger, string message)
{
return repository.Tags.Create(tagName, target, tagger, message);
}
}
}
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